Engineering & Architecture Jobs

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Hourly - Intermediate ($$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
I have a plant model in state space representation. I want to design a cascaded ILC for this plant. Inner loop will be a FOPID and outer loop will be ILC. The output should perfectly track the desired input (step and sine wave) and response to external disturbance should be minimum.​ Programming for the cascaded ILC for the given plant model.​ freelauncer sholud have experience in programming related to control system.
Skills: MATLAB Simulink System Automation
Fixed-Price - Expert ($$$) - Est. Budget: $5 - Posted
Phase 1. Drive a 3" diameter cylinder weighing 200 grams at set operating speeds of between 0.25 rotations per second and one rotation per second. User interface could be a p.c. When phase 1 passes its test in the USA proceed to Phase 2. Stop and restart the motor after the disc has rotated by 90 degrees. When phase 2 passes its test in the USA Phase 3 Interface the motor to a drive system to be described. This is a prototype. Working environment and appearance are not important. We purchase all parts and components for the project. Applicants must speak fluent English and engineers should be based in the USA, or Canada.
Fixed-Price - Expert ($$$) - Est. Budget: $400 - Posted
Job Requirements: We require the design of a 6 cell Lithium Ion Polymer balanced battery charger and monitor. The battery would typically be a 19.8 volt, 1 amp hour pack of high discharge capability (40C+). The battery charger shall have the following features: • Accept a 5 volt USB input. This input must respect the USB loading limits for the different classes of USB charge source. • Accept a 24 volt input for the purpose of providing a 1 hour charge. • Provide over-charge protection. • Provide over-discharge protection. • Provide charge current regulation. • Provide Battery Short Circuit Protection. • Provide a balanced charge and discharge such that each cell in the pack is never over charged or discharged. • Be designed with EMC compatibility in mind. • Be designed with a low component count. • Have low to insignificant shutdown drain current to prevent battery under-voltage when stored for a significant length of time. The battery balancing must use a modern integrated device to minimise the total component count. This balancing device may be of a passive (energy dumping) or active design. A microcontroller will be utilised to establish communication between devices. A boost convertor shall elevate the USB voltage of 5 volts to a level suitable for charge purposes. An initial design has been produced which is to be developed and improved upon. The design process will be iterative with periodic review. You will not be expected to work in isolation. The successful candidate should have formal engineering qualifications, industrial experience, and familiarity with switched mode systems and embedded software development. The work will be split into several stages as follows: 1. Detailed review of the initial design. Does our initial design meet our requirements? You will be expected to analyse and appraise the initial design. This will involve research of potentially more suitable devices on the market, a study of the overall methodology, looking particularly at performance, anticipated reliability, with regard to component count and costs. 2. Design a development circuit board layout for development purposes. Route the board(s) in suitable CAD software and get the board(s) manufactured. These boards will then require component placement and solder reflow. It is likely that many packages will only be available in fine pitch surface mount. 3. Debugging of the hardware. The board will require careful debugging looking for correct function throughout. The use of a current limited supply and oscilloscope would be essential. 4. Detailed performance analysis of the boost convertor. This must be verified as meeting the given performance requirements. All components must be verified to be working within manufacturer limits. The convertor must be demonstrated to operate in a stable manner without significant voltage ringing at any point. 5. Detailed performance analysis of the charger. Analysis requirements will be as for the boost convertor. 6. Detailed performance analysis of battery balancer. It is highly likely that in order to perform this task communication with a microcontroller will be necessary. Analysis requirements will be as for the boost convertor. 7. Development of microcontroller software to implement all servicing requirements of relevant hardware. This could include the development of a battery balancing algorithm. It is not a requirement that the candidate should be able to manufacture and reflow the board(s). This can be completed elsewhere. Owing to the nature of development work it is not possible to accurately predict the time taken to reasonably complete each listed stage. Remuneration will be negotiated in advance of each stage. All work will remain the intellectual property of the Whey Forward Health Industries Ltd.
Fixed-Price - Intermediate ($$) - Est. Budget: $50 - Posted
Draw 3D house on ArquiCAD software and send it to app Bimx. - I have 2D model; - Ask me if you prefer dwg or pdf file.
Fixed-Price - Intermediate ($$) - Est. Budget: $200 - Posted
Have a working prototype of an electronic project involving arduino,accelerometer, bluetooth on the breadboard. When we imported the circuit on to a pcb we are facing problem with the working of the board. The work involves debugging the board to make it work . I will provide the circuit schematic and the pcb boards. The work involves identification and rectification of the problem,
Skills: Arduino
Fixed-Price - Intermediate ($$) - Est. Budget: $300 - Posted
Start-up medical device company at the University of Pennsylvania is seeking an electrical engineer to provide expertise to concept prototype. Work would be limited in scope initially, approximately 15-20 hours, with the opportunity to increase role dependent upon quality of work. Opportunity for equity within the company, pending NIH grant funding. The initial consultancy and design aspect is immediate, further work will likely be next year. Experience with medical devices and/or nanotechnology a plus, but general electrical engineering expertise will also be considered.
Skills: Electrical engineering Electronic Design Nanotechnology Product Design
Fixed-Price - Intermediate ($$) - Est. Budget: $40 - Posted
I am looking for an individual to render some drawings I have made for a wobble board into a CAD drawing. I have hand sketches that I want made into CAD drawings. Budget of $40
Fixed-Price - Intermediate ($$) - Est. Budget: $20 - Posted
We are designing a Townhouse that will consist of two residences. It is a Mother/Daughter townhouse, new construction residence. The Lower level to be used the an elderly couple, and needs to accommodate wheelchair bound, physically handicapped persons. The upper floors to be used as a family residence. All, with luxury features. Design to incorporate a timeless design, incorporating classic, yet modern features. Attached is the AutoCAD fil for the current design to be enhanced and optimized.
Skills: AutoCAD Autodesk Revit Interior design
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, 10-30 hrs/week - Posted
We are developing a project management solution to assist US architects who work on residential projects. The first version of the product focuses mainly on the C.A. (Construction Administration) project stage. We are looking for architects to provide us feedback along the development process on an hourly basis. We believe the best way to conduct the task would be to hold a skype call and share our product screens with you. If you preferred, we could also send several screens in a ppt instead of conducting a live demo through screen sharing. At the beginning we will give a short explanation and demo of the product and then expect to conduct an open conversation about the different product potential values, benefits and features. All in all, the first conversation should take an hour. In following steps the project may extend to include usage trials.
Skills: Architecture Information Architecture Process architecture